CN213234944U

CN213234944U - Novel quick circulation of oil-well rig lower casing device

Info

Publication number: CN213234944U
Application number: CN202020592544.2U
Authority: CN
Inventors: 徐耀忠
Original assignee: Neihuang Petroleum Machinery Co ltd
Current assignee: Neihuang Petroleum Machinery Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-05-18
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a novel quick circulation device for a lower casing of an oil drilling machine, which comprises a mounting plate, wherein the outer wall of the mounting plate is provided with threads, one end of the mounting plate is fixedly connected with a first connecting pipe, one end of the first connecting pipe, which is far away from the mounting plate, is fixedly connected with a second connecting pipe, the outer walls of one ends of the first connecting pipe and the second connecting pipe are respectively provided with external threads, the inner walls of one ends of the first connecting pipe and the second connecting pipe are respectively provided with internal threads, one end of the second connecting pipe, which is far away from the first connecting pipe, is fixedly connected with a guide pipe, one end of the guide pipe, which is far away from the second connecting pipe, is welded with a liquid inlet pipe, the outer wall of the bottom end of the liquid inlet pipe is provided with a liquid inlet hole, one end of the mounting plate, which, one end of the rubber hose, which is far away from the high-pressure union, is connected with a pressure pump.

Description

Novel quick circulation of oil-well rig lower casing device

Technical Field

The utility model particularly relates to an oil creeps into technical field, specifically is a novel quick circulation of oil-well rig lower casing device.

Background

Oil drilling refers to the exploration of oil storage blocks, the drilling of a cylindrical hole with a certain diameter downwards or on one side at a preselected surface position by using special equipment and technology, and the drilling of underground hydrocarbon reservoirs.

The general method for drilling teams to raise a casing, unload the raised casing, connect a casing circulation joint, connect a kelly bar and start a pump for circulation is that the casing is lifted, the time is wasted, the casing is blocked in the same process under the complex underground condition, the next construction is difficult, and the risk of underground accidents is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, a novel quick circulation of oil-well rig lower casing is provided device to reach the convenient purpose that circulates to mud.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel quick circulation of oil-well rig lower casing device, includes the mounting panel, screw thread has been seted up on the outer wall of mounting panel, the first connecting pipe of one end fixedly connected with of mounting panel, first connecting pipe is kept away from the one end fixedly connected with second connecting pipe of mounting panel, first connecting pipe with the external screw thread has all been seted up on the one end outer wall of second connecting pipe, first connecting pipe with the internal thread has all been seted up on the one end inner wall of second connecting pipe, the second connecting pipe is kept away from the one end fixedly connected with of first connecting pipe

The stand pipe, the stand pipe is kept away from the one end welding of second connecting pipe has the feed liquor pipe, the feed liquor hole has been seted up on the bottom outer wall of feed liquor pipe.

The mounting panel is kept away from the one end fixedly connected with high-pressure pipe of first connecting pipe, the high-pressure pipe is kept away from the one end fixedly connected with high-pressure oil union of mounting panel, high-pressure oil union is kept away from the one end fixedly connected with rubber hose of high-pressure pipe, rubber hose keeps away from the one end of high-pressure oil union is connected with the force pump.

As a further aspect of the present invention: the outer wall of the second connecting pipe is provided with a fixed plate, a fixed shaft is welded on one side wall of the fixed plate, the inside of the fixed shaft is hollow, an inner spring and a stop block are arranged inside the fixed shaft, and one end of the inner spring is fixedly connected with the stop block.

As a further aspect of the present invention: the dog is kept away from the welding has the loose axle on one side outer wall of inner spring, just the loose axle extends to the outside of fixed axle, the loose axle is kept away from the one end welding of dog has the smooth plate.

As a further aspect of the present invention: an outer spring is sleeved on the outer wall of the movable shaft.

As a further aspect of the present invention: and a handle is welded on the outer wall of the high-pressure pipe.

As a further aspect of the present invention: handles are welded on the outer walls of the first connecting pipe and the second connecting pipe.

As a further aspect of the present invention: the first connecting pipe and the second connecting pipe are connected through the internal thread and the external thread.

Compared with the prior art, the utility model discloses a technological effect and advantage:

1. use the device can the sleeve pipe limit circulation mud under the limit, through the screw thread on the mounting panel outer wall with the device install a sheathed tube inside, move down along with the sleeve pipe, move down when darker at the sleeve pipe, only need use longer rubber hose can, manufacturing cost is lower, first connecting pipe is the same with second connecting pipe structure and is connected through internal thread and external screw thread, this side be convenient for dismantle installation and transportation to can increase the quantity of connecting pipe according to actual conditions.

2. Through fixed axle, inner spring, dog, loose axle, smooth plate and the outer spring that sets up, light slide contacts with sheathed tube inner wall during the use, and inner spring and outer spring produce deformation, are favorable to reducing rocking of second connecting pipe in the use like this for the device operation is more stable.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a cross-sectional view of the connection tube structure of the present invention.

Fig. 3 is a cross-sectional view of the fixing shaft structure of the present invention.

Fig. 4 is a schematic view of the smooth plate structure of the present invention.

1-mounting plate, 2-first connecting pipe, 3-second connecting pipe, 4-external thread, 5-internal thread, 6-guide pipe, 7-liquid inlet pipe, 8-liquid inlet hole, 9-high pressure pipe, 10-high pressure union, 11-rubber hose, 12-fixing plate, 13-fixing shaft, 14-internal spring, 15-stop block, 16-movable shaft, 17-smooth plate, 18-external spring, 19-handle and 20-handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a novel quick circulation device for the lower casing of an oil drilling machine, as shown in figures 1-4, which comprises a mounting plate 1, wherein the outer wall of the mounting plate 1 is provided with a thread, when in use, the device is arranged inside a casing through the thread on the outer wall of the mounting plate 1, thereby the device is fixedly connected with the casing, along with the downward movement of the casing, one end of the mounting plate 1 is fixedly connected with a first connecting pipe 2, one end of the first connecting pipe 2, which is far away from the mounting plate 1, is fixedly connected with a second connecting pipe 3, the outer walls of one ends of the first connecting pipe 2 and the second connecting pipe 3 are both provided with an external thread 4, the inner walls of one ends of the first connecting pipe 2 and the second connecting pipe 3 are both provided with an internal thread 5, the first connecting pipe 2 and the second connecting pipe 3 have the same structure and are connected through, second connecting pipe 3 keeps away from one end fixedly connected with stand pipe 6 of first connecting pipe 2, the one end welding that second connecting pipe 3 was kept away from to stand pipe 6 has feed liquor pipe 7, feed liquor hole 8 has been seted up on the bottom outer wall of feed liquor pipe 7, the one end fixedly connected with high-pressure pipe 9 of first connecting pipe 2 is kept away from to mounting panel 1, the one end fixedly connected with high-pressure oil union 10 of mounting panel 1 is kept away from to high-pressure pipe 9, the one end fixedly connected with rubber hose 11 that high-pressure oil union 9 was kept away from to high-pressure oil union 10, the one end that rubber hose 11 kept away from high-pressure oil union 10 is connected with the force pump, when needs circulate mud, start the force pump that is connected with rubber hose 11, mud gets into the inside of feed liquor pipe 7 from.

Referring to fig. 1 and 3, a fixing plate 12 is mounted on the outer wall of the second connecting pipe 3, a fixing shaft 13 is welded on one side wall of the fixing plate 12, the fixing shaft 13 is hollow inside, an inner spring 14 and a stop block 15 are arranged inside the fixing shaft 13, one end of the inner spring 14 is fixedly connected with the stop block 15, a movable shaft 16 is welded on the outer wall of one side of the stop block 15 far away from the inner spring 14, the movable shaft 16 extends to the outside of the fixing shaft 13, a smooth plate 17 is welded at one end of the movable shaft 16 far away from the stop block 15, an outer spring 18 is sleeved on the outer wall of the movable shaft 16, the fixed shaft 13 and the movable shaft 16 and the smooth plate 17 are in effect, the optical sliding plate 17 is in contact with the inner wall of the sleeve pipe during use, the inner spring 14 and the outer spring 18 are deformed, which is beneficial to reducing the shaking of.

As shown in fig. 1, a handle 19 is welded on the outer wall of the high-pressure pipe 9, after the device is used, the mounting plate 1 is rotated to detach the device from the sleeve, the device is convenient to move through the handle 19, and handles 20 are welded on the outer walls of the first connecting pipe 2 and the second connecting pipe 3, so that the device can be conveniently taken.

The working principle is as follows: the utility model relates to a novel quick circulation device of oil rig lower casing, during the use, install the device in a sheathed tube inside through the screw thread on the mounting panel 1 outer wall, thereby with the device and sleeve pipe fixed connection, along with the sleeve pipe moves down together, when needing to circulate mud, start the force pump that is connected with rubber hose 11, mud gets into the inside of feed liquor pipe 7 from feed liquor hole 8, thereby extract the circulation to mud, first connecting pipe 2 is the same with second connecting pipe 3 structure and is connected through internal thread 4 and external screw thread 5, this side is convenient for dismantle installation and transportation, under the effect of fixed axle 13, loose axle 16 and smooth plate 17, light slide 17 contacts with the sheathed tube inner wall during the use, inner spring 14 and outer spring 18 produce deformation, be favorable to reducing the rocking of second connecting pipe 3 in the use like this, make the device operation more stable, after use, the mounting plate 1 is rotated to remove the device from the sleeve, and the device is moved by the handle 19.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a novel quick circulation of oil-well rig lower casing device, includes mounting panel (1), set up screw thread on the outer wall of mounting panel (1), its characterized in that: a first connecting pipe (2) is fixedly connected to one end of the mounting plate (1), a second connecting pipe (3) is fixedly connected to one end, far away from the mounting plate (1), of the first connecting pipe (2), external threads (4) are formed in the outer wall of one end of the first connecting pipe (2) and one end of the second connecting pipe (3), internal threads (5) are formed in the inner wall of one end of the first connecting pipe (2) and one end of the second connecting pipe (3), far away from the first connecting pipe (2), are fixedly connected with a guide pipe (6), a liquid inlet pipe (7) is welded to one end, far away from the second connecting pipe (3), of the guide pipe (6), and a liquid inlet hole (8) is formed in the outer wall of the bottom end of the liquid inlet pipe (7);

keep away from mounting panel (1) the one end fixedly connected with high-pressure pipe (9) of first connecting pipe (2), keep away from high-pressure pipe (9) the one end fixedly connected with high-pressure oil union (10) of mounting panel (1), keep away from high-pressure oil union (10) the one end fixedly connected with rubber hose (11) of high-pressure pipe (9), rubber hose (11) are kept away from the one end of high-pressure oil union (10) is connected with the force pump.

2. The novel quick circulation device for the lower casing of the oil rig as claimed in claim 1, wherein: install fixed plate (12) on the outer wall of second connecting pipe (3), the welding has fixed axle (13) on the lateral wall of fixed plate (12), just the inside cavity of fixed axle (13), the inside of fixed axle (13) is provided with inner spring (14) and dog (15), the one end of inner spring (14) with dog (15) fixed connection.

3. The novel quick circulation device for the lower casing of the oil rig as claimed in claim 2, wherein: dog (15) are kept away from the welding has loose axle (16) on the one side outer wall of inner spring (14), just loose axle (16) extend to the outside of fixed axle (13), loose axle (16) are kept away from the welding of the one end of dog (15) has smooth plate (17).

4. The novel quick circulation device for the lower casing of the oil rig as claimed in claim 3, wherein: an outer spring (18) is sleeved on the outer wall of the movable shaft (16).

5. The novel quick circulation device for the lower casing of the oil rig as claimed in claim 1, wherein: and a handle (19) is welded on the outer wall of the high-pressure pipe (9).

6. The novel quick circulation device for the lower casing of the oil rig as claimed in claim 1, wherein: handles (20) are welded on the outer walls of the first connecting pipe (2) and the second connecting pipe (3).

7. The novel quick circulation device for the lower casing of the oil rig as claimed in claim 1, wherein: the first connecting pipe (2) and the second connecting pipe (3) are connected through the internal thread (5) and the external thread (4).